Improvement in tools for cutting glass



UNITED STATES PATENT OFFICE.

S. G. MONCE, OF BRISTOL, CONNECTICUT.

IMPROVEMENT IN TOOLS FOR CUTTING GLASS.

Specification forming part of Letters Patent No. 91,150, dated June 8, 1869.

.To all whom it may concern.-

Beit known that I, S. G. MONCE, of Bristol, in the county of Hartford and State of Connecticut, have invented a new and Improved Tool for Cutting Glass; and I do hereby declare that the following is afull, clear, and eX- act description thereof, reference being had to the accompanying drawings, making a part of the saine, in which- Figure l is a front elevation of my invention. Fig. 2 is a side elevation of the same. Fig. 3 is a front elevation of the cutter. Fig. 4 is a side elevation of the saine.

Similar letters of reference indicate like parts.

My invention consists in the use or employment of a revolving steel roller, the periphery of which roller is beveled on both sides, so as to form a cutting-edge, and is fitted to revolve in a suitable frame, and attached to a handle for operating the same.

, The cutter A is made from steel, and is turned smooth and round, and afterward hardened. The sides La are parallel, or nearly so, for a short distance, and then beveled toward each other, so as to meet about midway between the same, thus forming the point or eutting-edge D. The beveled portion c c of the sides a. a should be at an angle of about forty-iive degrees to the axis of the cutter A, and, consequently, will be at near right angles to each other.

It is not necessary that the angles of the beveled sides c c should be at exactly right angles to each other; but near that angle, or a very little more obtuse7 the cutter is found to operate to the best advantage.

The cutter A can be iitted to revolve on a pin, or on solid journals at each end, which latter mode I prefer, and -show the same in the drawings.

B designates the frame, which can be made either in one piece or inhalves, and secured by a rivet or screw. In the drawing it is made of two pieces, and secured by a rivet. The frame B, near one end7 is provided with bearings for the journals d d, which journals should be a little shorter than the thickness of the sides e e of the frame B, in order that when the sides @care placed against a straightedge or other gage, the end of the journal shall not come in contact with such gage. The handle C can 'be of any desired form, and secured to the frame B in any proper manner. I construct said handle like the handle ordinarily used for a diamond-tool.

To cut glass orlike substances, the cutter A is drawn quickly across the glass, pressing upon it at the same time, which causes the cutter to revolve. A fine line or scratch is made in the path of the cutting-point D, similar to that made by a diamond.

As the general form of the tool, except the cutter, is the same as an ordinary diamondtool, the same gages and devices can be employed to cut the glass into any desired pattern.

In cutting circular work from glass, it is customary to X a diamond in a suitable machine, so that a circle can be readily described. For similar usesI dispense with the described handle C and frame B, while the cutter Acau be fitted to revolve in any desired part of the machine.

By my invention I produce a tool for eutting glass which is equally convenient in use as au ordinary diamond, and can be sold, at a large profit, for one-tenth of the usual cost of a diamond. It requires less skill to operate it, and can be used by different persons without any liability to injure the same.

I do not claim, simply, a revolving cutter; but

W'hat I claim as new, and desire to secure by Letters Patent, is- I l. The cutter A, constructed substantially as shown and described, and for the purposes set forth.

2. The combination of the cutter A, frame B, and handle C, substantially as and for the purposes described.

S. G. MONCE.

Witnesses:

R. D. SIMPsoN, J AMEs SHEPAED. 

